Encriptar archivo APP.CONFIG de vb.net

[RootK]

te paso un code que yo utilizo

Código:

/// <summary>
        /// Encripta la información que aparece en los appsettings de la aplicacion 
        /// </summary>
        static void EncryptConnectionStrings()
        {
            Configuration config = ConfigurationManager.
                  OpenExeConfiguration
                  (ConfigurationUserLevel.None);
            ConfigurationSection section =
                config.GetSection("connectionStrings");
            if (section != null)
            {                
                if (!section.IsReadOnly())
                {
                    if (!section.SectionInformation.IsProtected)
                    {
                        section.SectionInformation.ProtectSection
                       ("DataProtectionConfigurationProvider");
                        section.SectionInformation.
                              ForceSave = true;
                        config.Save(ConfigurationSaveMode.Full);
                    }
                }
            }
        }